62 lines · cpp
1//===----------------------------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9// <string>10 11// template<class charT, class traits, class Allocator>12// bool operator>(const charT* lhs, const basic_string<charT,traits,Allocator>& rhs); // constexpr since C++2013 14#include <string>15#include <cassert>16 17#include "test_macros.h"18#include "min_allocator.h"19 20template <class S>21TEST_CONSTEXPR_CXX20 void test(const typename S::value_type* lhs, const S& rhs, bool x) {22 assert((lhs > rhs) == x);23}24 25template <class S>26TEST_CONSTEXPR_CXX20 void test_string() {27 test("", S(""), false);28 test("", S("abcde"), false);29 test("", S("abcdefghij"), false);30 test("", S("abcdefghijklmnopqrst"), false);31 test("abcde", S(""), true);32 test("abcde", S("abcde"), false);33 test("abcde", S("abcdefghij"), false);34 test("abcde", S("abcdefghijklmnopqrst"), false);35 test("abcdefghij", S(""), true);36 test("abcdefghij", S("abcde"), true);37 test("abcdefghij", S("abcdefghij"), false);38 test("abcdefghij", S("abcdefghijklmnopqrst"), false);39 test("abcdefghijklmnopqrst", S(""), true);40 test("abcdefghijklmnopqrst", S("abcde"), true);41 test("abcdefghijklmnopqrst", S("abcdefghij"), true);42 test("abcdefghijklmnopqrst", S("abcdefghijklmnopqrst"), false);43}44 45TEST_CONSTEXPR_CXX20 bool test() {46 test_string<std::string>();47#if TEST_STD_VER >= 1148 test_string<std::basic_string<char, std::char_traits<char>, min_allocator<char> > >();49#endif50 51 return true;52}53 54int main(int, char**) {55 test();56#if TEST_STD_VER > 1757 static_assert(test());58#endif59 60 return 0;61}62